Analyze the words in bold in the sentences below: However,...

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Polar bears and climate changing

When we think about global warming and climate change, we usually think ________________how it is going to affect humans. However, we need to think about animals, too. Many species will be threatened
______________________ extinction by the end of this century if climate change is not halted. One of these is the world’s largest land predator, the polar bear. This magnificent native ___________________ the Arctic previously had no natural enemy apart _______________________man, but is now under threat from nature itself. Because of melting sea ice, it is likely that more polar bears will soon starve, warns a new study that discovered the large carnivores need to eat 60 percent more than anyone had realized.

Polar bears use floating ice as a platform to hunt seals from. They eat a large volume of food during the winter, storing enough fat under their skin to last them through the summer months. When the ice melts in the spring, many travel south to places such as Churchill, Canada, returning north when the seas freeze again, usually around October. Now, however, the winter ice is melting earlier and forming later. The bears’ store of fat runs out, and some starve to death. Other bears are drowning, because many of the ice platforms have melted, and some bears have to swim over a hundred kilometres from one ice platform to another. Due to exhaustion or stormy weather, some never make it to their destinations.
Analyze the words in bold in the sentences below:
However, we need to think about animals, too  ‘…but is now under threat from nature itself.’ ‘Due to exhaustion or stormy weather…’ ‘As a result of all these factors…’
We can infer that the words in bold:
1. They are called discourse markers or linking words, as they help the speaker to manage the conversation and mark when it changes.
2. Discourse markers are words and phrases used in reading to ‘signpost’ discourse.
3. Linking words show us turns, join ideas together, and generally control communication.
4. Discourse markers are referred to more commonly as ‘linking words’ and ‘linking phrases’, or ‘sentence connectors’.
5. They are used more frequently in speech, unless the speech is very formal.

Choose the alternative which contains all the correct affirmatives.
Alternativas